Removable spacer



N. L. HERMAN 2,613,571

REMOVABLE SPACER Filed May 10, 1949 nvmvroze. AAr/m/v Z A/EPMA/Y 141?fwj 14? roguevs Patented Oct. 14, 1952 'umfreos;rares arrest oFFflcEli II I A I v k i 1 I Natban llr Herman-Cleveland,ionic,assignorrto NewWilmingtomla. c

Application May 10,1949,"Seria1Nc;92-,44e

This invention relates "a ,journal supports provided forthe shaft.

Another object of -the invention is to -provide arcuate, removablespacer means wherein -two or more of the "spacersareno'rmally usedin endto end association'to"fdrm' an'annular spacer unit.

A further object of the invention is jto provide sturdy, inexpensivetypes of spacers 'of--ar-' cuate construction so that the spacers can beengaged with or removed from operative position on a shaft by merelyloosening the assemly of elements carried by the shaft.

The foregoing and other objects and advantages of the invention willbecome more apparent as the specification proceeds.

For a better understanding of the present invention, attention isdirected to the accompanying drawings which disclose one presentlypreferred embodiment of the principles of the present invention, andwherein:

Fig. 1 is an elevation, partially shown in longitudinal section, of acombination slitter disc and spacer means of the invention shown inoperative association;

Fig. 2 is an enlarged longitudinal section, partially shown in explodedform, of a portion of the slitter and spacer means of Fig. 1;

Fig. 3 is an end or edge elevation of a spacer member of the invention;and

Fig. 4 is a vertical transverse section showing two spacer members inengagement with a positioning shaft.

With reference to the details of the structure shown in the drawings, apair of parallel shafts or spindles l and 2 are provided. These shafts Iand 2 are journalled at each end of eachshaft by conventional means (notshown), or they are secured to suitable supports, as desired. In someinstances, it may be desirable to use the removable spacers of theinvention with other types of shafts which may have a cantilever supportprovided therefor but normally the spacers removatie" {spacers I 1 mm.(Clii85s -5l).

by the shafts i and 2 intermediate. the adjacent l fie -Ma'chineandEngineering. flompamfl Inc.,.

of th'einvention havemasimum. application whereboth-ends of the shafts Iand 2 are securedtofixed devices. The shafts I andi2both carryaplurality of" slitter discs or members 13 in longitudinally s'pacedportions of the shafts.

Thesesl-itter discs carried by the. different shafts are arrangedincooperating positions on-their mounting shaftswherebyadjacent edges ofeach pair-ofslitterdiscs will-be immediately adjacent each -other-toeffect a cuttingzor slitting action-onany material passed between thepairs of-slitters3.'*

As an: important 1 feature.v of .the; present; ;in-

vention, removable spacers 4 and. 5 :aregcarried slitter memberspositioned thereon, These spacers 4 and Bare :ofcorresponding shape andcon struction only? in this-.instanceuthe spacers Eare shown as beingslightly narrowerthanthe-spacers 4;. The 1 spacers 4; and; dare shown Ias being of-arcuateaformand in this instance are illustrated ascomprising an arcuate length of approximately although the spacers maybe of less than 180 in extent and they may have any desired width. Thustwo of the spacers 4, or 5, can be positioned with the ends of thespacers in abutting relation to form an annular spacer unit. Thesespacers 4 and 5 are both provided with a pair of parallel, flat opposedside surfaces 6 and I. These side surfaces of the spacers are adapted tobe positioned flush against or abutted against the corresponding flatside surfaces formed on the slitters 3 so that a tight or compactassembly of spacers and slitters can be provided on the shafts I and 2.

In order to secure the assembly of spacers and slitters tightly to theirpositioning or mounting shafts, a shoulder 8 is provided on each of theshafts in most instances and the remaining end portion of the shafts Iand 2 then are of reduced diameter from the shoulder 8 over to a pointadjacent an opposite end portion of the shaft. The reduced diameterportion of the shafts I and 2 are provided with threaded portions 8which have lock nuts 9 and Ill engaged therewith for exerting axialcompressive forces on the assembly formed from the abutted slitters andspacer discs.

A special feature of the present invention is that the slitters 3 andthe spacers 4 and 5 each have one or more pins II secured to andprotruding or extending from one side surface thereof. These pins II arethen received in recesses I2 that are shaped complementary to theprotruding portion of the pins II and are properly positionedcircumferentially with relation to the slitter and spacer members sothat the adjacent side surfaces of such members can be moved into tightcontact with the pins snugly received in the recesses [2. It will berealized that the pins H may be of any desired shape and that anydesired number of the pins may be provided. Usually the pins are carriedon corresponding sides of each of the slitters and spacer member but insome instances it may be desirable to position the pins on both sides ofcertain members and to provide corresponding recesses in both surfacesof other members used in the assembly. combination of the invention. Byengaging pins II on the removable spacers with recesses 12 in abuttedmembers, the engagement of the pins and recesses will serve to securethe spacers to the shaft with which such spacers are associated, as someof the spacers engage means carried by orformed in members such as theslitters 3 which are positively secured to the shafts.

In order to secure the slitters 3 and spacers 4 and 5 to the shafts land 2, usually a longitudi- 4 preciated that modification of thisparticular embodiment of the invention may be resorted to withoutdeparting from the scope of the invention as defined by the appendedclaim.

Havin thus described my invention, what I claim is:

A removable spacer assembly comprising a pair of flat surfaced uniformthicknesssemi-circular members of 180 in extent, said members beingpositioned with their ends abutted, protruding means on one side of saidmembers, at least one of said members having a key receiving slotprovided therein intermediate the ends thereof, said membershavingrecessed means in the other side nally extending key I3 is carriedby each of the loosened for slight axial movement on their positioningshafts I and *2. Hence any desired spacer member canbe removed fromtheassembly, and new spacers be inserted therefor, or otherre-arrangementmay be made of the spacers positioned on the shafts I and2.

While one complete embodiment of the in vention has been disclosedherein, it will be apface thereof adapted to receive protruding means onan adjacent member when positioned thereagainst, said protruding meansand said recessed means being accurately positioned circumferentiallywith relation to said key receiving slot to facilitate engagingprotruding means on one pairof members with recessed means in anyadjacent member.

, NATHAN 1 HERMAN. REFERENCES CITED The following references are ofrecord in the file of this patent:

UNITED STATES PATENTS 2,251,313 Yoder Aug. 5, 1941

